When we have many packages to be specified on the embedded stack command the comment line can become too long. It would be nice to support a multiline comment so that it can formatted for better readability. Like this:

{- stack --verbosity silent 
         --resolver lts-3.14 
         --install-ghc runghc 
         --package system-filepath 
         --package system-argv0 
         --package random 
         --package argparser
         ...
-}

Further comments from the stack mailing list:

Perhaps {-# OPTIONS_STACK ... #-} would be a more standard syntax for it?

I'd worry about that being confused with compiler pragmas, and people expecting to to be used in all cases (i.e. by stack build as well). Since this only applies when using stack as a script interpreter, that would be misleading.